Mishneh Torah — Negative Mitzvot מצוות לא תעשה, Chapter 298
The full Hebrew text of Mishneh Torah, Negative Mitzvot, Chapter 298, with English translation by Maimonides (Rambam).
שלא להניח מכשול, שנאמר "וְלֹא תָשִׂים דָּמִים בְּבֵיתֶךָ" (דברים כב, ח).
Not to leave obstacles, as [Deuteronomy 22:8] states: "...lest you bring blood upon your house."